Record details
Subjects: *BIRD food; *MIGRATORY birds; *BIRD migration
Subjects: MIGRATORY birds; DISASTERS; ENVIRONMENTAL disasters
Subjects: *MIGRATORY birds; *ANIMAL ecology; *NUMBERS of speciesMEXICO City (Mexico)
Subjects: *MIGRATORY birds; *LIGHTING; *ANIMAL behavior
Subjects: MIGRATORY birds; WILDLIFE conservation lawsUNITED StatesU.S. Fish & Wildlife Service
Subjects: *Population; *Habitats; *Urban densityPuerto Rico
Subjects: *MIGRATORY birds; *CLIMATE change; *GENE mapping
Subjects: *FORAGING behavior; *MIGRATORY birds; *CLIMATOLOGY